Universal concrete core drilling machine
Technical Field
The invention belongs to the field of civil engineering mechanical equipment, and particularly relates to a concrete universal core taking machine.
Background
Concrete is one of the most important building materials in the building engineering of China, and the quality of the concrete is directly related to the safety of building structures. The quality monitoring and detection of reinforced concrete, and the guarantee and improvement of the quality of concrete, especially the strength problem of concrete, are important subjects in the current building engineering. However, the composition and quality of the existing concrete raw materials are greatly changed compared with the prior art, and the performance of the concrete is influenced by a plurality of factors such as field curing conditions, so that the surface performance of the concrete is poor.
The rebound method is that a rebound hammer of a resiliometer is beaten on the surface of concrete by certain elasticity, and the rebound height of the rebound hammer and the surface hardness of the concrete form a certain proportional relation, so that the rebound value can reflect the surface hardness of the concrete, the compressive strength of the concrete can be estimated according to the surface hardness, and the rebound method can only represent the hardness value of surface layer concrete, but the surface layer quality of the concrete is the weakest nowadays, and the rebound method also becomes one of the main reasons for unqualified detection of a large number of entity structure rebound methods. Industry regulations simultaneously stipulate that coring is carried out on structures which are unqualified in rebound law detection, and solid concrete is characterized by the performance of a core sample, but most of the existing core drilling machines have the following problems: (1) the drill bit of the core drilling machine and the track for pushing the drill bit to advance are not coaxial, so that the force applied by the drill bit is not uniform during pushing, the surface of a core sample is not smooth, and the influence on the strength test result of the concrete is large; (2) the motor is used as a power source for drilling of the drill bit, the drill bit needs to be cooled by running water during drilling, and in order to prevent electric leakage, the motor needs to be operated under a dry and anhydrous condition, so that the inclined plane position, the top surface position and the coring of an underwater structure of a solid structure are difficult to implement, and the performance of concrete at the positions is unknown; (3) the existing core drilling machine is complex in structure, inconvenient to install and maintain, high in manufacturing cost, low in equipment efficiency, high in labor intensity of workers and incapable of meeting the core drilling requirement under special conditions.
It will thus be seen that the prior art is susceptible to further improvements and enhancements.
Disclosure of Invention
The invention provides a concrete universal core drilling machine for avoiding the defects of the prior art.
The technical scheme adopted by the invention is as follows:
omnipotent core machine of getting of concrete, including frame and coring bit, the middle part of frame is provided with the first actuating mechanism who drives coring bit rotatory, the upper portion of frame is provided with the second actuating mechanism who drives coring bit lift, the bottom of frame is provided with coring machine location structure, still be provided with the holder that is used for installing coring bit in the frame, first actuating mechanism is located the inside of holder and links firmly with it, second actuating mechanism is located the top of holder and links firmly with it, the holder can be followed the frame and slided from top to bottom under second actuating mechanism's drive, be provided with the linear guide who is used for supporting and guide holder motion in the frame.
First actuating mechanism includes hydraulic motor, and this hydraulic motor is piston hydraulic motor, and the aforesaid is got the core bit and is passed through the drill bit hasp and link to each other with hydraulic motor's pivot, and the drill bit hasp is installed at the top of getting the core bit, wears to be equipped with first pipe of intaking in the inside cavity of hydraulic motor's the pivot and this pivot, wears to be equipped with the second pipe of intaking that is linked together with first pipe of intaking in getting the core bit.
The second driving mechanism comprises a hydraulic cylinder arranged on the rack and a hydraulic cylinder connecting seat arranged on the upper part of the retainer, the hydraulic cylinder is positioned above the hydraulic cylinder connecting seat, and a piston rod of the hydraulic cylinder is hinged with the hydraulic cylinder connecting seat.
The outside cover of coring bit has set the drill bit buffer structure of marcing, and this drill bit buffer structure of marcing is including installing spring support seat and the spring shim of installing in coring bit bottom on upper portion in coring bit, presss from both sides between spring support seat and the spring shim and is equipped with buffer spring.
Get the outer retractable protection casing that still encloses of core bit, retractable protection casing passes through the bearing and links to each other with getting the core bit, and retractable protection casing and get and be connected for the sealed between the core bit, all seted up the outlet on the up end of retractable protection casing and the lower terminal surface.
And a three-fork spray head is arranged at one end of the second water inlet pipe close to the drilling end of the core bit.
The frame includes three supporting beam, and one of them is located the rear, and two other just are located the place ahead side by side, are provided with many strengthening ribs between two adjacent supporting beam, and the top of frame is provided with the top cap, is detachable connection between top cap and each supporting beam.
The upper end face, the lower end face, the left end face, the right end face and the rear end face of the retainer are of a closed structure, and the front end face of the retainer is of an open structure.
The three linear guide rails are respectively arranged on the opposite inner sides of the three supporting beams, the retainer is positioned in an enclosure ring formed by the three supporting beams in a matching way, and the left end face, the right end face and the rear end face of the retainer are fixedly connected with sliding blocks matched with the three linear guide rails respectively.
The core drilling machine positioning structure comprises three positioning rulers which are respectively connected with the supporting beams, and the three positioning rulers are crossed in a Y shape.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the axis of the coring bit is parallel to the straight line of the linear guide rail, so that the hydraulic cylinder drives the coring bit to lift and lower uniformly, the surface of the obtained core sample is smooth, and the accuracy of the solid concrete strength test is improved.
2. The invention uses the hydraulic cylinder and the hydraulic motor as the power source for drilling the core bit, can realize core taking at any position of underwater and water structures, has smooth core sample side surface, and the core bit automatically applies force by the hydraulic motor without being attended, thereby reducing the labor intensity of workers and the construction cost, and improving the core sample quality and the working efficiency.
3. The core taking device is simple in structure, convenient to install and maintain, low in manufacturing cost and capable of meeting core taking requirements under special conditions.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the rack of the present invention.
FIG. 3 is an assembly view of the coring bit and the first drive mechanism of the present invention.
FIG. 4 is a schematic view of the core bit of the present invention.
Fig. 5 is a schematic structural view of a second water inlet conduit according to the present invention.
Wherein,
1. the core drilling machine comprises a frame 101, a support beam 102, a reinforcing rib 103, a linear guide rail 104, a retainer 105, a sliding block 106, a top cover 2, a second driving mechanism 201, a hydraulic cylinder 202, a hydraulic cylinder connecting seat 203, a hinge bolt 3, a first driving mechanism 301, a hydraulic motor 302, a first water inlet pipe 4, a coring bit 401, a bit lock catch 402, a bearing 403, a spring supporting seat 404, a buffer spring 405, a spring gasket 406, a second water inlet pipe 407, a three-fork nozzle 408, a telescopic protective cover 409, a water outlet 5, a core drilling machine positioning structure 501, a positioning ruler
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, but the present invention is not limited to these examples.
As shown in fig. 1 and 2, the concrete universal core taking machine comprises a rack 1 and a core taking drill bit 4, wherein the rack 1 comprises three supporting beams 101, one of the supporting beams 101 is located at the rear, the other two supporting beams 101 are arranged side by side and located at the front, the three supporting beams 101 are arranged in a regular triangle, a plurality of reinforcing ribs 102 are arranged between two adjacent supporting beams 101, a top cover 106 is arranged at the top of the rack 1, and the top cover 106 is detachably connected with each supporting beam 101; the middle part of a frame 1 is provided with a first driving mechanism 3 for driving a core bit 4 to rotate, the upper part of the frame 1 is provided with a second driving mechanism 2 for driving the core bit 4 to lift, the bottom part of the frame 1 is provided with a core-taking machine positioning structure 5, the core-taking machine positioning structure 5 comprises three positioning rules 501 which are respectively connected with each supporting beam 101 through positioning bolts, the three positioning rules 501 are crossed in a Y shape, the frame 1 is also provided with a retainer 104 for installing the core bit 4, the upper, lower, left, right and rear end surfaces of the retainer 104 are all closed structures, the front end surface of the retainer 104 is an open structure, the first driving mechanism 3 is positioned inside the retainer 104 and fixedly connected with the retainer 104, the second driving mechanism 2 is positioned above the retainer 104 and fixedly connected with the retainer 104, the retainer 104 can slide up and down along the frame 1 under the driving of the second driving mechanism 2, the frame 1 is provided with a linear guide rail for supporting and guiding the movement of the retainer, the three linear guide rails 103 are respectively arranged on the opposite inner sides of the three support beams 101, the retainer 104 is positioned in an enclosure formed by the three support beams 101 in a matching way, and the left end face, the right end face and the rear end face of the retainer 104 are respectively fixedly connected with sliding blocks 105 matched with the three linear guide rails 103; the linear guide 103 effectively ensures that the coring bit 4 does not generate transverse displacement in the working process, and the axial line of the coring bit 4 is parallel to the straight line of the linear guide, so that the second driving mechanism 2 can drive the coring bit to uniformly apply force when lifting, and a core sample with a smooth surface can be obtained.
As shown in fig. 1, 3, 4 and 5, the first driving mechanism 3 includes a hydraulic motor 301, and the hydraulic motor 301 is a piston-type hydraulic motor, the coring bit 4 is connected to a rotating shaft of the hydraulic motor 301 through a bit lock 401, the bit lock 401 is installed on a top of the coring bit 4, the rotating shaft of the hydraulic motor 301 is hollow and has a first water inlet conduit 302 penetrating therein, a second water inlet conduit 406 communicating with the first water inlet conduit 302 penetrates through the coring bit 4, a three-way nozzle 407 is installed at an end of the second water inlet conduit 406 close to a drilling end of the coring bit 4, a water supply system is installed inside the coring bit 4, external water is directly sprayed onto the coring bit 4 through the first and second water inlet conduits, the three-way nozzle 407 is installed to more uniformly spray water onto the drilling end of the coring bit 4, thereby effectively reducing a temperature of the coring bit 4 during drilling, the service life of the coring bit 4 is prolonged while the working efficiency is improved.
As shown in fig. 1, the second driving mechanism 2 includes a hydraulic cylinder 201 fixedly connected to the bottom end of the top cover 106 and a hydraulic cylinder connecting seat 202 connected to the upper end surface of the holder 104 through a positioning bolt, the hydraulic cylinder 201 is located above the hydraulic cylinder connecting seat 202, the upper portion of the hydraulic cylinder 201 is connected to the top cover 106 through the positioning bolt, and a piston rod of the hydraulic cylinder 201 is hinged to the hydraulic cylinder connecting seat 202 through a hinge bolt 203. The hydraulic motor 301 and the core bit 4 are assembled and then installed on the retainer 104, and the retainer 104 is fixedly connected with the hydraulic cylinder connecting seat 202, so that the retainer 104 can be pushed and retracted by the hydraulic cylinder 201, and the core bit 4 can move forwards and backwards.
As shown in fig. 3 and 4, a bit advance buffering structure is sleeved outside the coring bit 4, the bit advance buffering structure includes a spring support seat 403 installed at the middle upper part of the coring bit 4 and a spring washer 405 installed at the bottom end of the coring bit 4, and a buffer spring 404 is interposed between the spring support seat 403 and the spring washer 405; the outer periphery of the core bit 4 is provided with a retractable protective cover 408 which is used for collecting sewage and guiding the sewage to the outside of the equipment, the retractable protective cover 408 is connected with the core bit 4 through a bearing 402, and the retractable protective cover 408 is hermetically connected with the core bit 4, so that the retractable protective cover 408 can rotate or not rotate when the core bit 4 rotates, the upper end surface and the lower end surface of the retractable protective cover 408 are both provided with water outlets 409, wherein the water outlets on the upper end surface are used for removing water remained in the retractable protective cover 408 after the core is finished, the water outlets on the lower end surface are used for removing excessive water on a spring gasket 405, the inside of the retractable protective cover 408 is also provided with a gasket supported by a buffer spring 404, and the structure ensures that the core bit 4 can be soaked in water for a long time in the core taking process, thereby reducing the temperature of the coring bit 4 and improving the working efficiency.
The hydraulic power of the hydraulic cylinder 201 and the hydraulic motor 301 is supplied from a hydraulic pump station which is connected with the core drilling machine in the invention through pipelines, and the water of the water needed by the core drilling bit 4 is from an external small water pump. When the core drilling machine is used, the positioning ruler 501 is firstly installed at a position where core drilling is needed, the installation position of the core drilling machine is determined, then the whole core drilling machine is directly installed and fixed through punching, after the core drilling machine is installed and fixed, the hydraulic loop and the water path are directly installed in place, and then the hydraulic cylinder 201 and the hydraulic motor 301 are started to work. The invention drives the holding frame 104 to advance and retreat by pushing and retracting the hydraulic cylinder 201, drives the coring bit 4 to rotate by the hydraulic motor 301, removes the core sample, then detaches and recycles the hydraulic oil pipe and the water pipe, and then opens the water outlet of the telescopic protective cover 408 to drain the residual sewage.
Parts which are not described in the invention can be realized by adopting or referring to the prior art.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first" and "second" in the present disclosure are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Although terms such as frame 1, secondary drive mechanism 2, hydraulic cylinder attachment mount 202, coring bit 4, bit catch 401, trifurcate spray head 407, coring machine positioning structure 5, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations that fall within the spirit of the present invention.
It is further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.